JPH11203846A - Method of storing information and recording medium processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To let a storage means correctly store event information for each event. SOLUTION: An electronic program guide detecting part 33 takes out and decodes electronic program guide data, and supplies a decoded signal DG to a control part 50. When a program is recorded in a cassette 10, a tape position is discriminated by rotating the reel of the cassette 10 by a tape deck 36. Program information such as a date of recording, a start time of recording, a recording position of a tape, etc., of the program to be recorded are written on a memory card 20. Writing of the information is executed at the end of the program when all the program information are available together. When plural programs are recorded successively, an end of a program is discriminated by referring to the electronic program guide, and program information are written in the card 20 when the program ends. The program information on the card 20 are corrected according to recording of a new program. Thus, it is possible to let a storage means correctly store event information of an event recorded in the cassette 10 for each event.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an information storage method and a recording medium processing device. Specifically, a storage unit is provided on a recording medium, and event information for specifying an event recorded on the recording medium is stored in a storage unit provided on the recording medium. This is performed at the end of an event when predetermined event information is obtained.

[0002]

2. Description of the Related Art Conventionally, a recording medium processing apparatus for recording various events, for example, a video tape recorder for recording and reproducing broadcast programs and the like, relates to a program recorded in a video cassette or a storage device provided in the video tape recorder. There is known an apparatus in which program information is written, and which program can be determined by reading the program information from the storage device. In this storage device, the recording date, recording start time, channel number, tape recording position, and the like of the program are stored as program information.

[0003]

When the information indicating the tape position is recorded together with the program, the tape position can be easily determined by performing reproduction. However, when information indicating the tape position is not recorded, for example, the tape must be run for a predetermined time, and the tape position must be calculated from the amount of change in the reel rotation cycle.
It takes time to determine the tape position. Therefore, if it is assumed that the program information is written to the storage device at the end of recording, if the recording time is short, the program information is written without the information of the tape recording position. Cannot be searched.

In the case of writing program information at the end of recording, if the program is recorded continuously, the program information for a plurality of programs is written to a storage device. It is not possible to select a desired program from the programs recorded in the recording.

In view of the above, the present invention provides an information storage method and a recording medium processing device capable of correctly storing event information for each event.

[0006]

According to the present invention, there is provided an information storage method, wherein a storage means is provided on a recording medium, and event information indicating an event recorded on the recording medium is stored in the storage means. The writing of the event information is performed at the end of the event when the predetermined event information is obtained.The recording medium processing device writes the information to the storage means provided on the recording medium and reads the information. Information writing / reading means, recording means for recording an event on a recording medium, event information indicating an event recorded on the recording medium by the signal recording means while controlling operations of the information writing / reading means and the signal recording means The control means obtains predetermined event information and terminates the information writing / reading operation when the event recorded on the recording medium is completed. Controls the one in which write events information obtained in the storage means.

In the present invention, when the event information for specifying the event recorded on the recording medium is stored in the storage means, writing of the event information to the storage means is performed when predetermined event information is obtained. For example, this is performed at the end of the program when the tape position is determined and the tape recording position of the program is detected, and the tape recording position is written in the storage means together with the program recording date, recording start time, and channel number.

Further, for example, when a recording position of a program already recorded on a recording medium and a recording position of a newly recorded program overlap with each other, a correction for deleting an overlapping portion from the recording position of the already recorded program has been made. , For the program information stored in the storage means. Further, the program information of the program whose recording time is shorter than the predetermined time due to the deletion of the overlapping portion is deleted from the storage means.

When the end of the program is detected based on the electronic program guide information superimposed on the television signal or the cable television signal, the program information of the program for which the end is detected is written into the storage means. .

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a video cassette. In a recess 11 provided in a housing of the video cassette 10, a non-contact type memory card (hereinafter, referred to as a "memory card") 20, for example, as an auxiliary storage device serving as a storage means is provided. It is stuck.

As described above, when the video cassette 10 to which the memory card 20 is attached is mounted on the video tape recorder 30 shown in FIG. 2, an antenna disposed inside the memory card 20 and the video tape recorder 30 is provided. The memory card 41 attached to the video cassette 10 faces the memory card 41. A transmission / reception processing unit 42 is connected to the antenna 41, and a control unit 50 using a microcomputer (hereinafter referred to as a “microcomputer”) is connected to the transmission / reception processing unit 42. Communication is performed with the communication device 50.

The memory card 20 is configured as shown in FIG. 3, and the antenna 201 receives a radio wave from the antenna 41. The signal RFA received by the antenna 201 is supplied to the tuning circuit 202 and the power supply circuit 220.

In the tuning circuit 202, a modulation signal MAR having a predetermined carrier frequency is selected from the signal RFA supplied from the antenna 201. The modulation signal MAR obtained by the tuning circuit 202 is amplified to a predetermined level by the amplification circuit 203 and then supplied to the demodulation circuit 204. Demodulation circuit 2
At 04, the modulated signal MAR is demodulated to be a received data signal DMR. The received data signal DMR is supplied to the microcomputer 210 via the communication control circuit 205.

The microcomputer 210 has a ROM (Read Only M
emory) 211 is connected, and each part of the memory card 20 is controlled according to a control program stored in the ROM 211. The microcomputer 210 includes an EEPROM.
(Electrically Erasable and Programmable Read Only M
emory) 212 is connected, and program information (recording date, recording start time, channel number, etc.) included in the supplied received data signal DMR is stored in the EEPROM 212. The information stored in the EEPROM 212 is read out by the microcomputer 210 and the transmission data signal DM
When S is generated, the transmission data signal DMS is supplied to the modulation circuit 206 via the communication control circuit 205.

In the modulation circuit 206, the supplied transmission data
The data signal DMS is modulated into a signal of a predetermined carrier frequency. The modulation signal MBS obtained by the modulation circuit 206 is amplified to a signal level necessary for communication by the amplification circuit 207, and then supplied to the antenna 201, and the modulation signal MBS of the carrier frequency is transmitted from the antenna 201.

In the power supply circuit 220, the antenna 20
Memory card 20 using the signal RFA supplied from
Generates the required power.

FIG. 4 shows the configuration of the transmission / reception processing section 42 as information writing / reading means. The antenna 41 receives radio waves from the antenna 201 of the memory card 20. The signal RFB received by the antenna 41 is transmitted to a tuning circuit 422.
Supplied to

The tuning circuit 422 selects a modulation signal MBR having a predetermined carrier frequency from the signal RFB. The modulation signal MBR obtained by the tuning circuit 422 is
The signal is amplified to a predetermined level at 23 and supplied to a demodulation circuit 424. In demodulation circuit 424, modulated signal MBR is demodulated to be received data signal DVR. The received data signal DVR is supplied to the control unit 50 via the communication control circuit 425.

When the transmission data signal DVS having program information is supplied from the control unit 50, the transmission data signal DVS
Is supplied to the modulation circuit 426 via the communication control circuit 425.

In the modulation circuit 426, the supplied transmission data
Data signal DVS is modulated into a signal of a predetermined carrier frequency. The modulation signal MAS obtained by the modulation circuit 426 is amplified to a signal level necessary for communication by the amplification circuit 427, and then supplied to the antenna 41. The modulation signal MAS of the carrier frequency is transmitted from the antenna 41.

A signal RFT obtained by receiving a broadcast wave with the antenna 61 shown in FIG. The tuner 32 selects a broadcast wave of a desired frequency to generate a video signal VT. This video signal VT is supplied to the electronic program guide detection unit 33.

If the electronic program guide information is inserted in the vertical blanking period of the video signal VT, the electronic program guide detecting section 33 takes out and decodes the electronic program guide data. The electronic program guide decode signal GD obtained by the electronic program guide detection unit 33 is supplied to the control unit 50. The video signal VT supplied to the electronic program guide detecting unit 33 is supplied to the signal processing unit 34 via the electronic program guide detecting unit 33. The signal processing section 34 constituting the recording means processes the video signal VT to generate a recording signal WS. The recording signal WS is supplied to the mechanical deck 36 constituting the recording means, and is recorded on the video tape of the video cassette 10 by the rotating head (not shown) of the mechanical deck 36.

When the video tape is reproduced, a reproduction signal RS is supplied from the mechanical deck 36 to the signal processor 34. The signal processing unit 34 processes the reproduction signal RS to generate a reproduction video signal VP. The reproduced video signal VP is supplied to the character generator 38.

The character generator 38 generates a video signal VC for displaying program information and the like based on a control signal CC from the controller 50. Further, in the character generator section 38, the generated video signal VC is superimposed on the reproduced video signal VP from the signal processing section 34,
The video tape recorder 30 as the video output signal VOUT
Output from Alternatively, any one of the reproduced video signal VP and the generated video signal VC is a video output signal V
OUT is output from the video tape recorder 30. When the video output signal VOUT is supplied to the display device 65, a reproduced image, information, and the like are displayed on the screen of the display device 65.

The control section 50 of the video tape recorder 30 generates a control signal CT for controlling the tuner section 32, the signal processing section 34, and the mechanical deck section 36, and also generates a control signal CT for the memory card 20 attached to the video cassette 10.
The communication with is also performed. Further, the control signal CC is generated based on the reception data signal DVR from the transmission / reception processing unit 42. An input unit 55 is connected to the control unit 50, and the operation of the video tape recorder 30 is switched by operating the input unit 55. The switching of the operation may be performed by using a remote control device or a telephone line.

The control section 50 has a memory (not shown), in which the electronic program guide decode signal supplied from the electronic program guide detecting section 33 is stored.
This electronic program guide is composed of, for example, program information for several days.

In the above-described video cassette 10, the memory card 20 is attached as an auxiliary storage device. However, a video cassette with a cassette memory in which a memory such as an EEPROM is incorporated as an auxiliary storage device can be used. This video cassette 15 with cassette memory
In FIG. 5, a contact portion 16 for performing communication is provided as shown in FIG. Therefore, when such a video cassette 15 with a cassette memory is used in the video tape recorder 30, a terminal unit connected to the contact unit 16 is provided, and this terminal unit is connected to the control unit 50.

In the video tape recorder 30 configured as above, the program information recorded on the video cassette by the data signal from the control unit 50, for example, the recording date, the recording start time, the channel number, the tape recording position, etc. It is stored in the auxiliary storage device of the cassette. In order to confirm the program recorded on the video cassette, program information is read from the auxiliary storage device, and a control signal CC is generated based on the read information and supplied to the character generator 38. You. The character generator 38 generates a video signal VC for displaying information based on the control signal CC and supplies the video signal VC to the display device 65.
Therefore, on the screen of the display device 65, as shown in FIG. 6, the program information stored in the auxiliary storage device, for example, the recording date,
The day of the week, the recording start time, and the channel number are displayed in order of the recording date.

Next, the operation will be described with reference to the flowcharts shown in FIGS. In step ST1, it is determined whether or not data indicating the tape thickness or the entire length of the tape is written in the auxiliary storage device of the video cassette.
Here, when the data indicating the tape thickness or the entire length of the tape is written, the process proceeds to step ST2, the data of the tape thickness or the entire length of the tape is read from the auxiliary storage device, and the process proceeds to step ST5.

If it is determined in step ST1 that no data has been written, the process proceeds to step ST3, where the measurement of the tape thickness and the entire length of the tape are performed.

FIG. 9 is a diagram for explaining a method for measuring the tape thickness and the entire length of the tape. In FIG. 9, the side area ASsh of the supply-side reel (hereinafter referred to as “S-reel”) 101
Is the radius of the outermost periphery of the tape laminated portion 101p as "rs",
The tape speed is “V”, and the angular speed of the S reel 101 is “ω”.
s ", it can be obtained from equation (1). ASs = π × rs ² (1)

The radius rs of the outermost periphery of the tape laminated portion 101p
Can be obtained from Expression (3) obtained by modifying Expression (2). “Ts” is the rotation cycle of the S reel 101. V = rs × ωs = rs × 2π × (1 / Ts) (2) rs = (VTs) / (2π) (3)

Therefore, as shown by the equation (4) obtained by substituting the equation (3) into the equation (1), the side area ASsh of the S reel 101 depends on the tape speed V and the rotation period T of the S reel 101.
can be obtained from s. ASs = π × ((VTs) / (2π)) ² = (1 / 4π) × V ² × Ts ² (4)

Similarly, the side area ATsh of the T reel 102 can be calculated by measuring the rotation period Tt of the take-up reel (hereinafter referred to as "T reel") 102.

Next, when the tape is run for a predetermined time WT at the tape speed V, for example, the side area on the S reel 101 side is changed from "ASsh1" to "ASsh2". Further, the tape length Ld at this time is obtained from Expression (5). Ld = V × WT (5)

For this reason, the tape thickness D can be calculated by dividing the amount of change in the side area "ASsh1-ASsh2" by the tape length Ld as in the following equation (6). D = (ASsh1-ASsh2) / Ld = (ASsh1-ASsh2) / V / WT (6)

The amount of change in the side area during the predetermined time WT is large when the radius of the outermost periphery of the tape lamination portion is small. For this reason, when calculating the tape thickness D, the side area of the reel having the smaller outermost radius of the tape lamination portion of either the S reel 101 or the T reel, that is, the side area on the reel side having a shorter rotation cycle is used. The tape thickness D can be determined with high accuracy. Also, the S reel 10
When the outermost radii of the tape lamination portion of 1 and the T reel are substantially equal, the change amount of the side area of each of the S reel 101 and the T reel is substantially equal, so that the predetermined time TN (for example, 15 The thickness D of the tape is calculated using the change amount of the side area in (min).

When the tape thickness D is obtained in this manner, the side area ASsh of the S reel 101 and the side area ATsh of the T reel 102 are added, and the obtained total area AA is divided by the tape thickness D. Thereby, the length LA is calculated.

As shown in equation (7), when the length LA is multiplied by the ratio of the side area ASsh of the S reel 101 to the total area AA, the S reel side length LSsh can be calculated. LSsh = LA × (ASsh / AA) (7)

Incidentally, the length "LSsh" of the S reel side is S
The length is a length in a state in which the tape is wound around the hub 101h on the reel 101 side. For this reason, the length “LSh” corresponding to the pub part 101h is calculated, and the S reel side length “LSh” is calculated.
Ssh ”, the correct tape length“ LS ”of the tape portion 101p wound on the S reel 101 is obtained.
s "can be calculated.

In a video cassette of the VHS system or the like, a small-diameter hub is used for a video cassette having a long recording time, and a large-diameter hub is used for a video cassette having a short recording time. Here, the value obtained by adding the rotation cycle Ts of the S reel 101 and the rotation cycle Tt of the T reel 102 during tape running is a large value when a hub having a large diameter is used, and a value when a hub having a small diameter is used. Is a small value. Therefore, it is possible to determine which hub is used based on the sum of the rotation cycle Ts of the S reel 101 and the rotation cycle Tt of the T reel 102.

By calculating the side areas of the small-diameter hub and the large-diameter hub in advance, when the hub diameter is determined, the determined hub side area is divided by the tape thickness D. Length LS corresponding to hub portion 101h
h can be determined. By subtracting the length LSh corresponding to the hub portion 101h from the S reel side length LSsh, the correct tape length LSs of the tape stacking portion 101p of the S reel 101 can be calculated.

Further, since the correct tape length LTs of the T reel 102 can be calculated in the same manner, the total tape length L can be calculated by adding the tape length LSS and the tape length LTs.

When the tape thickness D and the total length L of the tape are obtained in this manner, the process proceeds to step ST4, where the measured data of the tape thickness D and the total length L of the tape are stored in the auxiliary storage device, and the process proceeds to step ST5. . The tape thickness D
The measurement of the total length L of the tape is performed when recording or reproducing a program.

Here, the auxiliary storage device is a memory card 20
When the memory card 20 is attached to the video cassette 10, the memory card 20 may be replaced. Therefore, when proceeding from step ST2 to step ST5, the tape thickness and the total length of the tape are measured, and it may be determined whether or not the data of the tape thickness and the total length of the tape stored in the auxiliary storage device is correct. Good. in this case,
When the data of the tape thickness and the data of the entire length of the tape are different, the data of the measured tape thickness and the data of the entire length of the tape are written into the auxiliary storage device, so that the tape thickness and the total length of the tape of the auxiliary storage device can be set to correct values.

In step ST5, it is determined whether or not the recording time of the program is a predetermined time TN (a time set for calculating the tape thickness D and the total length of the tape), for example, 15 minutes or more. Here, when the recording of the program is started, if the data of the tape thickness or the entire length of the tape is not written in the auxiliary storage device, the tape recording position cannot be determined. Therefore, if the recording time is equal to or longer than the predetermined time TN in step ST5, the process proceeds to step ST6, and if not, the process returns to step ST5.

When the process proceeds from step ST5 to step ST6, it is determined in step ST6 whether or not the recording operation has been completed. Here, when the recording operation is completed, the process proceeds to step ST8, and when the recording operation is not completed,
It proceeds to step ST7.

In step ST7, it is determined whether or not the program has ended based on the information of the electronic program guide stored in the memory of the control unit 50. Here, when it is determined that the program has not ended, the process returns to step ST6, and when it is determined that the program has ended, the process proceeds to step ST8.

In step ST8, the program information stored in the auxiliary storage device is read, and the process proceeds to step ST9. In step ST9, the variable A is set to "1", and the process proceeds to step ST10.

In step ST10, there is an overlapping portion between the recording position of the "A" th program from the read program information and the recording position of the program whose recording has been completed or whose termination has been detected. It is determined whether or not this is the case.
Here, if there is an overlapping portion, step ST
Go to step 11 if there is no overlapping part
Proceed to 12.

At step ST11, since the new program has been overwritten on the "A" th program, the program information of the "A" th program stored in the auxiliary storage device is corrected and The recording position is deleted and step ST
Proceed to 12.

In step ST12, "1" is added to the value of the variable A to obtain a new value of the variable A, and the process proceeds to step ST13. In step ST13, it is determined whether or not the variable A has exceeded the number of programs stored in the auxiliary storage device. If the value of the variable A does not exceed the number of programs, the process returns to step ST10, and it is determined whether or not a new program is overwritten on the next program. When the value of the variable A exceeds the number of programs, the process proceeds to step ST14.

In step ST14, the value of variable A is set to "1", and the flow advances to step ST15. In step ST15, it is determined whether or not the recording time of the “A” th program is shorter than a predetermined time TN. If the recording time is shorter than the predetermined time TN, step ST
The process proceeds to step ST16, and if not shorter than the predetermined time TN, the process proceeds to step ST17.

In step ST16, the program information of the "A" -th program stored in the auxiliary storage device is deleted, and the process proceeds to step ST17.

In step ST17, "1" is added to the value of the variable A to obtain a new value of the variable A, and the process proceeds to step ST18. In step ST18, it is determined whether or not the variable A has exceeded the number of programs stored in the auxiliary storage device. Here, when the value of the variable A does not exceed the number of programs, the process returns to step ST15, and it is determined whether or not the recording time of the next program is shorter than the predetermined time T. If the value of the variable A exceeds the number of programs, step ST
Proceed to 19.

In step ST19, the program information of the program whose recording has been completed or whose termination has been detected is stored in the auxiliary storage device.

As described above, step ST6 and step S
By the processing of T7 and the processing of steps ST9 to ST13, the program information of the program stored in the auxiliary storage device is modified according to the recording of the new program. Further, by the processing of steps ST14 to ST18, the program information of the program whose recording time is shorter than the predetermined time TN based on the corrected program information is deleted from the auxiliary storage device.

As described above, according to the above-described embodiment,
Since the program information is written in the auxiliary storage device in a state in which the program information is arranged, the program information is read from the auxiliary storage device, the program information is displayed on the screen of the display device 65, and the displayed program is displayed by using the input unit 55 or the like. Is selected, the selected program can be easily searched based on the tape recording position of the selected program. Further, when the end of the program is detected, the program information of the program is stored in the auxiliary storage device. Therefore, even when a plurality of programs are continuously recorded, the program information stored in the auxiliary storage device is stored. By using the information, it is possible to search for a desired program from continuously recorded programs.

Further, when the recording positions of the programs overlap, the overlapping portions are deleted from the recording positions of the already recorded programs. For this reason, the program information stored in the auxiliary storage device is assumed to correspond to the recording state of the program on the video cassette, so that a desired program can be correctly searched from the displayed program information. Further, the overlapping portion is deleted from the recording position of the program, and the program information of the program whose recording time is shorter than the predetermined time TN is deleted from the auxiliary storage device. Therefore, for example, when a new program is recorded at the recording position of the unnecessary program, even when the unnecessary program remains for a time shorter than the predetermined time TN, it is displayed on the screen of the display device 65. Since the unnecessary programs are not displayed, the recorded programs can be displayed on the screen of the display device 65 in an organized state.

In the above embodiment, a case has been described where a program is recorded on a video tape recorder and program information recorded on a video cassette is written in an auxiliary storage device. However, events are limited to broadcast programs and the like. However, the recording medium processing device is not limited to the video tape recorder. Further, although the event information is stored in the auxiliary storage device, a memory or the like may be provided in the recording medium processing device, and the event information may be stored in the memory or the like.

[0061]

According to the present invention, the writing of event information to the storage means is performed when predetermined event information is obtained. Therefore, it is possible to read out the event information stored in the storage unit and perform a desired operation, for example, a search operation for a desired event.

Further, when the recording position of the event already recorded on the recording medium and the recording position of the newly recorded event overlap, the modification of deleting the duplicated portion from the recording position of the already recorded event, This is performed on the event information stored in the storage unit. For this reason,
The event information stored in the storage means corresponds to the recording state of the event recorded on the recording medium, and for example, a desired event can be correctly searched using this event information.

Further, if the recording time of the event is shorter than the predetermined time due to the deletion of the overlapping portion, the event information of this event is deleted from the storage means, so that the event information can be easily read. Can be organized.

When the end of the program is detected based on the electronic program guide information, the program information of the program whose end is detected is written in the storage means. Therefore, for example, even when programs are continuously recorded, a desired program can be selected from the continuously recorded programs by using the program information.

[Brief description of the drawings]

FIG. 1 is a diagram showing a video cassette 10 to which a memory card 20 is attached.

FIG. 2 is a diagram showing a configuration of a video tape recorder 30.

FIG. 3 is a diagram showing a configuration of a memory card 20.

FIG. 4 is a diagram showing a configuration of a transmission / reception processing unit 42;

FIG. 5 is a diagram showing a video cassette 15 with a cassette memory.

FIG. 6 is a diagram showing a display image.

FIG. 7 is a flowchart illustrating an operation of the recording medium processing apparatus.

FIG. 8 is a flowchart illustrating an operation of the recording medium processing apparatus.

FIG. 9 is a diagram for explaining a tape position determination operation.

[Explanation of symbols]

10, 15 ... video cassette, 20 ... memory card, 30 ... video tape recorder, 32 ... tuner section, 33 ... electronic program guide detection section, 34 ...
-Signal processing unit, 36 ... mechanical deck unit, 38 ... character generator unit, 41, 61 ... antenna,
42: transmission / reception processing unit, 50: control unit, 55 ...
.Input unit, 65 ... display device

Claims (9)

[Claims] 1. A storage means is provided on a recording medium, and event information indicating an event recorded on the recording medium is stored in the storage means. Writing of the event information to the storage means is performed by a predetermined event. An information storage method, which is performed at the end of an event when information is obtained. 2. The information storage method according to claim 1, wherein the predetermined event information includes information indicating a recording position of an event recorded on the recording medium. 3. When the event information of the event recorded on the recording medium and the event information of the event newly stored on the recording medium have an overlapping portion of the recording position of the event, the event information has already been recorded. 3. The information storage method according to claim 2, wherein overlapping portions of recording positions are deleted from event information of events recorded on the recording medium. 4. The event information for which the event recording time is determined to be shorter than a predetermined time due to the deletion of the overlapping portion of the recording position is deleted from the storage means. Information storage method. 5. The event is a broadcast program, and when the predetermined event information is obtained, the end of the broadcast program is detected based on electronic program guide information superimposed on a television signal or a cable television signal. 2. The information storage method according to claim 1, wherein the event information is written into the storage means when the event information is stored. 6. An information writing and reading means for writing information to and reading information from a storage means provided on a recording medium; a recording means for recording an event on the recording medium; and the information writing and reading means. And control means for controlling the operation of the signal recording means and obtaining event information indicating an event to be recorded on the recording medium by the signal recording means. In the control means, predetermined event information is obtained and A recording medium processing apparatus characterized in that when an event recorded on a recording medium is completed, the information writing / reading means is controlled to write the obtained event information into the storage means. 7. The control means compares the obtained event information with the event information read from the storage means by controlling the information writing / reading means, and when an overlapping portion of an event recording position occurs, 7. The recording medium processing apparatus according to claim 6, wherein the control unit controls the information writing / reading unit to delete an overlapping portion from a recording position of the event information stored in the storage unit. 8. The control means controls the information writing / reading means to delete the event information whose event recording time is shorter than a predetermined time due to deletion of an overlapping portion from the recording position. 8. The recording medium processing apparatus according to claim 7, wherein said recording medium is deleted from said storage means. 9. An information obtaining means for obtaining electronic program guide information from a television signal or a cable television signal, wherein said control means obtains said predetermined event information when said predetermined event information is obtained. 7. The recording medium processing apparatus according to claim 6, wherein when the end of the event is detected based on the electronic program guide information, the information writing and reading means is controlled to write the event information into the storage means.